Vehicular controller
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United States of America Patent
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-
Jan 24, 2006
Grant Date -
May 8, 2003
app pub date -
Oct 31, 2002
filing date -
Nov 2, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A vehicular engine control unit has multi-CPU configuration. A main CPU executes a control processing subject to a monitoring processing and transmits monitoring data to a sub-CPU. The sub-CPU executes the monitoring processing based on the received monitoring data. The control processing executed by the main CPU and a control characteristic may be changed or modified in accordance with an engine capacity, a vehicle equipment or the like. Similarly, the monitoring data stored in a memory connected with the main CPU is also changed in accordance with the control characteristic and the like. Therefore, the sub-CPU can be commonly used for several arrangements or the control characteristics of the main CPU.
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